The sE Munro Egg 150 active speakers

The sE Munro Egg 150 active monitor system

I have a new interest in hifi and it is in active speakers. It all
started with the Hypex AS2.100
modules. These weren't perfect, but
still impressed me with their tight, dynamic and clear sound. Sadly,
they had a few flaws that spoiled their performance a bit, for me, but
I was still convinced that active speakers were a superior solution. I
had always known this, to be honest, but never really experienced it.
The difference is actually quite clear and very significant, as far as
I'm concerned. Most passive speakers now sound a bit muffled and soft
to me, with quite clear problems in the crossover region.

So, I started searching for other active speakers. To my surprise
there's a whole world out there, called 'pro audio', with loads of
active speakers. After some research I decided to try the sE Munro Egg
150 speakers, mostly based on reviews in pro audio magazines, but also
on the fact that they're a bit different. Luckily sE are very helpful
and forthcoming, and I had the speakers at home in no time at all.
They even do a 'try at home' deal, where you can try the Eggs for a
few weeks free of charge.

The somewhat strangely named sE Electronics is a UK based company,
founded in 2001.
They are famous for their high quality, high value microphones and
have the ambition to be "the next Neumann". Ambitious indeed! Still,
sE claim to be the biggest microphone brand in the UK already, and the
fastest growing in Europe and the USA, so they must be doing something
right. They have only recently decided to also start making monitors,
and the Egg 150 is their first, and still only, loudspeaker.

The Munro Egg 150 is a two way system with a 6 inch woofer
and a 1 inch soft dome tweeter in a front ported, egg shaped
enclosure. They are active, as you must have realised by now, but they
are a bit different from the standard active studio monitor. Most have
the amplification and active crossover built into the speakers, but
the Eggs have a separate box for all electronics, and the speakers
themselves actually only contain the drivers. The box looks like an
ordinary integrated amp, and that is indeed what it is, but not as we
know it: it only has two inputs, one balanced and one single ended,
and each of these inputs has its own volume control! Slightly
unexpected, but simple to explain: in a studio environment you'll want
to compare the output of a mixing desk to the output from an end-user
device, like a CD player. Studio equipment uses balanced connections
and consumer audio uses single ended ones. To do a proper comparison
the volume has to be matched too, which explains the double volume
controls. All very sensible, but possibly a bit of a pain at home.
Most people will want to connect more than one single ended source and
will be forced to add a switchbox to be able to do so. An additional
annoyance is the lack of remote control, although I personally don't
care too much about that.

On the other hand, the electronics box has a few features that we
never see on a normal amp. The bass and treble can be adjusted at the
back to match your room. Bass cannot be turned up, only down, but the
maximum setting for the treble is +1dB. You need a screw driver to
make the adjustments, so this is not something that can be changed on
a regular basis or used as tone control, but it's very useful anyway.
Then there's also an unexpected "mid eq" button on the front with 3
settings: 'soft', '0' and 'hard'. This adjusts the midrange, with
'soft' having the midrange slightly reduced, '0' being basically flat
and 'hard' having the mids slightly accentuated. In reality the effect
is rather subtle and even the difference between 'soft' and 'hard'
isn't all that easy to hear. Again, this is a feature that could be of
use in a studio environment to bring out the vocals, but is not of
much use at home. I generally used the flat setting. There's also a
built in headphones amp, which is nice.

Most active monitors have a high-pass filter that cuts out the deepest
bass for use with a subwoofer. The Eggs lack this and do not even
provide a subwoofer output. This makes it very difficult to use them
with a sub, limiting their use in the home environment even further.
The bass control at the back is not usable for this and the eggs don't
even come with a set of bungs to put in the bass ports. Luckily, they
did work quite well in my room, but if they don't then you're
basically stuffed.

Then there's the looks. I kind of like the way they look, but most
people will find them a challenging addition to their living room.
They can look a bit odd, certainly on stands. That strange shape has
been used for a reason, obviously - pro audio users aren't normally
into interior design, at least not at work. The egg shape serves two
purposes: first to help the speaker to radiate sound nice and evenly
in all directions, without coloration or reflections from sharp edges.
And secondly, it will prevent internal and cabinet resonance. Without
any flat, parallel surfaces inside the cabinet, internal reflections
are less harmful and the speaker should sound less 'boxy'. In
addition, the material that is used to make the cabinets is relatively
light. This is possible because of the added strength of the shape and
the lack of resonance, and prevents energy storage (the panels still
resonating while the sound is already gone). In theory all this should
result in a better sound, with less coloration and more spatial
information.

The Eggs have two LEDs above the tweeter. These allow you to align the
speakers for optimal performance. When you can see both lights
clearly, you're in the hotspot. Again, these might be useful in a
studio, but I was very happy that they could be switched off. One
final point is that the speaker cables used by the Eggs are not any
standard type, but specials ones that contain all wiring for the two
speakers, and for the LED lights. They come with Speakon connectors on
both sides, which makes connecting them very easy. The provided cables
are 3 meters long, and if you need more you'll have to try to order
longer ones from sE or make a new set yourself. They are also very
thick and stiff.

The built quality of the electronics box could be a bit disappointing
to audiophile sensitivities. It isn't the usual OTT (that's Over The
Top for the older generation), but merely adequate (that "good enough’
for the younger readers) and to me this only shows how ridiculous even
budget hifi has become, with centimetre thick fronts and silly feet.
The sE box is perfectly fine and, more importantly, the build quality
and component choice on the inside is excellent.

Finally, these speakers need to be used on stands, but you have to
make sure you have stands with a relatively large upper surface, as
the base of the Eggs is rather large and needs to be supported at the
edges. I needed to add a bit of MDF to my stands to accommodate them.
I would also recommend good quality stands, with good damping, as the
quiet refinement of the Eggs will allow you to hear any contribution
the stands will make to the sound. I initially used sand-filled stands,
borrowed from a friend, which worked quite well. Later, I replaced
these with Partington Super Dreadnought stands and these sounded
horrible until I completely filled them with sand.

Sound

This is the big issue. As you must have gathered by now, these are not
the most practical speakers to live with and their looks are an
acquired taste, but I would be more than willing to put up with all
that if the sound is right. The short story is simple enough: it is.
As soon as I started listening to them it all didn't matter anymore,
and I was completely convinced by the whole concept. Initially they
were a little bit on the bright side, but they come with the treble
adjustment set at the maximum +1dB, so this didn't come as a surprise.
Out came the screwdrivers and the treble was reduced by a quarter
turn, which should be about 1-1.5dB softer. This sounded fine to me
and I didn't feel any need for further changes during the rest of the
review period. Set like this, the Eggs produced a basically neutral
sound, perhaps even slightly on the warm side.

There are a few things that immediately come to your attention when
you start listening to these Eggs. The sound is extremely clean and
has tremendous clarity, the soundstage is as good as I've ever heard
and bass is strong and quite impressive for a speaker this size. They
also clearly show the classic active advantages of tightness,
extension, excellent dynamic expression and the ability to play loud
without problems. They always sound composed, and never aggressive or
compressed unless you play them very loud. I have to add that I used
them in a room of approximately 5 by 5 meter, and they coped fine with
that. It's not only dynamics in the sense of being able to play loud,
by the way, but also the ability to make things come alive and to
resolve micro dynamics.

Listen a bit longer and you'll find some less expected traits. Being
clean, clear and tight often makes a speaker analytic and overly
sensitive to recording quality, but the Eggs are actually quite
musical, easy to listen to and even play lesser recordings without
pain. The next surprise is how flexible they are: they play rock,
jazz, pop, classical and all other sorts of music I have in my
collection, all equally enjoyable. This is all the more impressive
because they have excellent resolution and good bandwidth, so it is
certainly not the case that they leave things out or cover anything
up. To the contrary: they expose as much as any other speaker I've had
at home, and this includes my SEAS Exotic full range speakers driven
by my Icon Audio valve amp, a pretty revealing system I would think.

The more I listened, the more I was amazed at the clarity with which
this system presents things. I think this has mainly to do with the
crossover region, which is virtually completely free of any artefacts,
at least as far as I can hear. This works magic on voices: the
combination of brilliant detail reproduction and freedom from
distortion produced a transparency that I had not experienced before
and which gives voices a level of realism that can be uncanny at
times. The fantastic soundstage also helps by giving the voice, the
person actually, a rock steady location in a fully 3D acoustic space.
When I reviewed the Elipson Planet L speakers I noticed that they were
very, very good at precisely the same thing, but there's no denying
that the Eggs are even better at this.

What is also remarkable is their ability to let each recording sound
like itself, instead of like your system. Of course they have a
character, and that does have an effect on the reproduction, but it is
sufficiently subtle to not interfere with the specific atmosphere of a
recording. Small sounds small, big sounds big, intimate sounds
intimate and aggressive sounds aggressive. Not many systems at this
price can do that.

Compared to other speakers, even active ones, the Eggs also show
incredible refinement. They make most other speakers in this class
sound slightly harsh and edgy in comparison. This can even give the
impression that the Eggs sound somewhat tame and lack a bit of
presence, but once you are used to it you realise that it’s most other
speakers adding something, not the Eggs leaving anything out. When
required, these speakers can sound as crisp and bright as the
recording dictates. Granted, they don't have the phenomenal extension
and pure silky refinement of a pair of Revelator tweeters, nor the
detail and speed of the SEAS Millennium, but they are not very far
off.

The only area that is slightly less satisfying, compared to the rest
of the spectrum, is the bass. It is sufficiently extended en deep
enough, but somewhat softer that de mids and highs. It could do with a
bit more texture and impact, but I do realise that this is asking a
lot from a woofer this size. Of course, this is also partly what makes
them so comfortable to listen to, so it will always be a trade-off.
It does, however, affect the way these
speakers deal with complex rhythms. They are OK rhythmically, but you
could do better for this price if this is your first priority. What
can also be annoying is the fact that the bass port can be heard from
time to time. It only happens with certain recordings, and only when
playing reasonable loud, but it certainly is a flaw. Again, a high
pass filter, or even a pair of port bungs, could solve the problem,
but are sadly not provided.

Another minor point is that they need to be played at a certain volume
to really come alive. On lower volumes they can sound a bit flat. I
suspect that this is more a function of their realism than a proper
flaw. Better systems are often more critical of correct volume and
need to be played at levels that are approximately realistic. The Eggs
do tempt you to play quite loud, though, and if this is not possible
in your situation then these might not be the right speaker for you.

In defence of the Eggs I do have to say that speakers like these can
be their own biggest enemies, in a way, as the clean, pure and precise
sound they can produce allows you not only to hear the music with
great clarity, but also any shortcomings or additions by the speakers
themselves. When taking everything into consideration, the fact remains
that there is only very little to criticise and so much to enjoy.

Conclusion

All in all, these active studio monitors are surprisingly lounge
friendly, sound wise. My biggest complaints are the lack of a
subwoofer output and accompanying high-pass filter, and the limited
number of inputs. There’s also a bit of port noise, which can be annoying.
But otherwise they are great. They have that rare combination of a
sound that engages and keeps you listening, without ever becoming
tiring. They produce a very composed, full bodied sound. These are also
the clearest, best staging and most refined sounding speakers I’ve ever
had in my system. They are musical, play all sorts of music, go more
than loud enough and offer unprecedented insights in my music collection.
The feature set might be a bit strange for the home situation, but for
this sort of money the sound is truly superb. Actually, I couldn't resist
buying the review samples: I cannot give a higher recommendation than that.